This city is located in the eastern Indian state of West Bengal and was first developed as a hill station for British colonial forces. It became famous after it was annexed by the British and used for tea production in the 19th Century. This industry continues, and the black tea produced here is among the most popular in the world. A stunning European-style colonial city was also established, much of which can still be seen today. The city is also renowned for the narrow-gauge Darjeeling Himalayan Railway, which is preserved as a UNESCO World Heritage Site.